Stump burner



1. R. MATTHEWS.

STUMP BURNER.

FILED .IAN-1711922.

Jan. 2, 1923. I

Patented Jan. 2, 1923.

` UhllpilED STTEQE g intatti natuur ycaricia,

` JOHN R. MATTHEWS, OF VANCOUVER, BRITISH COLUIMBl-i., CANADA.

STUMP BURNER.

Application :tiled January 17, 1922, Serial No. 529,933. i j

To all whom t may concern:

Be it known that I, JOHN R. MATTHEWS.,

rl`his invention relates to a stump burner ot that class wherein the stump is enclosed within a portable casing which retains :the heat in contact with the stump and enables it to be consumed by slow combustion, vand the improvements are directed to the provision of a sectional casing, which is waterjacketed, whereby lthe walls are protected against excessive heat, and in the sectional aspect the casing is adaptable to various sizes of stump under various conditions of ground line.

The water jacket spaces of the several sections are connected together, that the steam generated in them by the heat of the burning stump may deliver into an uptake oi' flue and induce a draught bringing in a fresh supply of air to support the combustion.

The invention is fully described in the following speciiication, reference being made to the drawings by which it is -accompanied, in which: 4

Fig. l is a vertical section showing the application of the device to a stump.

Fig. 2 is a plan and part section of the same.

Fig. 3, an enlarged detail of the hinge connection between the several sections of the casing.

The device comprises a series of relatively narrow rectangular wall and root sections, each composed of an inner wall 2 and outer wall 3 preserving a water space 4t between them. These sections are connected together to form an enclosing casing by hinges, see IFig. 3, wherein downn wardly bent pins 5 secured to the edge oi one section fit in corresponding sockets 6 secured to the edge of the other.

rlhe water spaces 4 of the several sec tions are removably connected together at the lower end by a nipple 7 inserted in the midwidth of each with a T connection S on it, extending the width of the section, with a unionY nut 9 on one end and a union screwing on the other end, that the 'l' connections may be all connected together.

The nipples? of one ot the sections may have a cross 10 to enable a water service to be connected to charge the jacket spaces` with water.

rlhe upper ends of ythese wally sections.

2, 3 are levelled up to receive the root sections which are oi similar construction having inner and outer walls with a water space I TheA width of the intermediate root'` section is the'same as that of ,the wall between.

sections but the end sections or. the root are wide-rby the thickness of the sections... y

The roof sections are connected togetherandtothe upper end the wall sections by a nipple l2 in eachv end of the root' section, on which nipple isv secured a four-- way 'l' 13. The wi' ends are 'connected together by nipples 14 and unionsl which thus connect the roof sections together and the fourth way of the T. is downwardly directed .and connected by a union l' and part oi each wall section. l j

The wall sections whichv extend along the length of the adjacent roof section, are each connected to that root' section by pipe connections 1S with unions 19 in a manner similar to that of the lower endsv of the wall sections. Through one or more of the roei sections are apertures 20 to which a smokestack 2i' may be connected, and adjacent the smokestack a pipe 22. is connected to the water jacket space of one of the roof sections to deliver the steam generated in the several sections into the base ci' the sinokestack to induce a draught. f

It the wall and rootl sections are made in various lengths, but are interchangeable in their connections, the casing may, as shown in Fig. l, be applied to irregular ground lines, or over prominent roots or boulders.

1With this casing a stump may be enclosed to retain the heat of combustion while providing for escape of the vapours and the admission of sufficient air to support combustion.

rlhe provision of the water jacket prevents the wall of the casing being excessively heated, and the escape of the steam genera-ted into the uptake or smokestack stimulates escape of the vapours and induces -a flow of i'resli air to support combustion.

elbow yto a nipple 17 secured in the upper` iio vention, l' hereby declare that what I Claim as new and desire to be protected in by Letters Patent7 is:

l. A stump burner, comprising incombiy nation a series of elongated rectangular wall those of the adjacent sections to form an eni closing casi`ng, means for removably oonnecting together the water spaces of the several wall sections,y meansfor connecting together the water spaces of the several roof sections, and means for connecting the upper part of each wall section to the adj aeent roof section.

3. A stump burner7 comprising in combination a series of elongated rectangular wall and root sections, each section having a water space between its inner and outer wall, and` provision for connecting its edges to those of the adjacent section to form an enclosing casing, means tor removably connecting together the lower end of the water space of each wall section, means for connecting together the water spaces of each root' section7 and means for connecting the upper end of the water space of each wall section to that of the adjacent root section.

A stump burner7 comprising in combination a series of elongated rectangular wall and roof. sections7 eachl section having a water space between its inner and outer wallg and provision for connecting its edges to those of the adjacent sections isoform an enclosing casing, means for removably con'- nectingtogether the -water spaces of the several sections, and means for applying the steam generated inthe water spaces to eject the` vapours of combustion from the casing;r

5. A stump burner, comprising in combination a series or elongated rectangular wall and roof sections, each section having a water space between its inner and outer wall,

and provision for connecting its edges to those of the adjacent sections to form an enclosing casing, means 'for removably connect# f i ing together the water spaces of the severalv sections, an aperture through the roof providing for escape of the vapours oi'eombustion from within the casing7 a smokestack over such aperture, and a steam pipe from one or' the roof sections delivering intothe base of the smolrestack.

In testimony whereof laiiiX my signature,yV

JOHN R. MATTHEWS. 

